It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 520 271 is not a prime number.
For example, 520 271 can be divided by 73: 520 271 / 73 = 7 127.
For 520 271 to be a prime number, it would have been required that 520 271 has only two divisors, i.e., itself and 1.
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520 271 is an odd number, because it is not evenly divisible by 2.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 520 271 is about 721.298.
Thus, the square root of 520 271 is not an integer, and therefore 520 271 is not a square number.
The square of a number (here 520 271) is the result of the product of this number (520 271) by itself (i.e., 520 271 × 520 271); the square of 520 271 is sometimes called "raising 520 271 to the power 2", or "520 271 squared".
The square of 520 271 is 270 681 913 441 because 520 271 × 520 271 = 520 2712 = 270 681 913 441.
As a consequence, 520 271 is the square root of 270 681 913 441.
The multiples of 520 271 are all integers evenly divisible by 520 271, that is all numbers such that the remainder of the division by 520 271 is zero. There are infinitely many multiples of 520 271. The smallest multiples of 520 271 are: